TITLE

Laboratory-scale controlled-atmosphere chamber for use with premium coal samples

AUTHOR(S)
Filla, B. James; Callanan, Jane E.
PUB. DATE
April 1985
SOURCE
Review of Scientific Instruments;Apr1985, Vol. 56 Issue 4, p592
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The recent availability of premium coal samples makes it desirable to have the capability for working with these materials, in one’s own laboratory, in an atmosphere which can be controlled. A controlled-atmosphere chamber, large enough to allow for processing samples yet small enough to fit easily in an ordinary laboratory, has been designed and fabricated. The overall cost of this controlled-atmosphere chamber was competitive with commercially available systems. The major advantages of this specific system include: convenient size and reversible design for use in a limited work space; incorporation of a full vacuum antechamber that minimizes loss of the working chamber purified atmosphere; and a recirculating system with a bypass valve arrangement allowing separate or combined operation of oxygen and moisture removal systems. The design features were combined to create a unique apparatus capable of both the specific use for which it was intended and general controlled-atmosphere chamber applications. Compatible modular-design work chambers could have been purchased from commercial vendors; however, it still would have been necessary to custom fabricate both the antechamber and recirculation system to meet the requirements of the anticipated experimental work.
ACCESSION #
9780387

 

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